- USB DAC chip: TE7022L
- Decoder chip, SD-650 using the Galaxy Far East Corp. the latest TE7022L chip, which is the most high-end USB decoder chip, support 96kHZ/24BIT。imported and expensive.
- USB mode to 24Bit frequency, the chip supports USB 2.0 Full Speed, and USB Audio Class 1.1 specifications, such as connected to the computer, you can plug and play functionality, so that simplifies software development time, there are more good sound quality performance.

Feature:
*SD-650 built-in MCU control switch machine mute。restart the DAC do not have to re-select the input。Multi-function input. Full-function LED display.
*SD-650 speed input and output control beautify the appearance, while also simplifying the operation, easier to use and easy to understand.
*SD-650 built-in headphone output switch circuit.
*SD-650 PC-USB / fiber / coaxial input, support all 24bit/96khz.